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Radiosensitivity of hemopoietic stem cells cloned in bone marrow and spleen

Journal Article · · Radiobiology (USSR) (Engl. Transl.); (United States)
OSTI ID:5590776
It has been demonstrated that the population of mouse bone marrow stem cells is heterogeneous with regard to radiosensitivity. The survival of about 55% CFU (colony-forming units) is described as an exponential function of radiation dose (D/sub 0/ = 9 rad). The dose-effect curve for the resistant part of the population (D/sub 0/ = 180 rad) is sigmoidal, with D/sub q/ = 130 rad. It is assumed that radiosensitive CFU represent the primary committed fraction of semistem cells, while the radioresistant ones are referable to the pool of pluripotent stem cells. The heterogeneity of the CFU population is confirmed with the use of various modifications of irradiation and in interaction of CFU with T lymphocytes.
OSTI ID:
5590776
Journal Information:
Radiobiology (USSR) (Engl. Transl.); (United States), Journal Name: Radiobiology (USSR) (Engl. Transl.); (United States) Vol. 19:1; ISSN RADBA
Country of Publication:
United States
Language:
English